24-hour format

In Lebanon, when someone says it's 3 o'clock and it's daytime, we all know they mean 3pm and not 3 o'clock in the morning. So you can imagine my confusion when I moved to France for a year where everyone uses the 24-hour format and I had to do the mental gymnastics every time (pun intended) to figure out the correct time. There are countries where this is the norm and others where it's not, but until now, you had to manually pick that setting in your Android phone. Not with P though.